intelliScore Polyphonic can convert audio input to MIDI (.mid) files. It can convert WAV or MP3 files to MIDI, grab music from an audio CD, or use input from a musical instrument (via recording). The program can separate the audio into different MID tracks, and recreate effects such as pitch bend, vibrato, tremolo, and portamento. intelliScore can be used to further process the MID output and figure out the notes, chord names, to remove vocals for Karaoke versions of a song and more.